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# Python program to check if a number is prime or not

In this Python programming guide, we are going to learn

• program to check if a number is prime or not in python

### Program to check if a number is prime or not in Python

The python program to check if a number is prime or not is as follows:

``````# Owner : TutorialsInhand Author : Devjeet Roy

number  = int(input("Enter number: "))

if number > 1:
for i in range(2,(number//2)+1):
if (number % i) == 0:
print(number,"is not a prime number")
break
else:
print(number,"is a prime number")
else:
print(number,"is not a prime number")``````

The output of python program to check if a number is prime or not is as follows:

``````PS C:\Users\DEVJEET\Desktop\tutorialsInHand> python code.py
Enter number: 81
81 is not a prime number``````

1. We take a user input and convert it to int data type.

2. Then to check if a number "n" is prime or not we repeat the loop upto n/2 (inclusive). If any number within that range divides it then the number is not prime, else the number is prime.

3. Finally, we print the answer on the terminal.

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